I've never had a bang- flop with a Barnes bullet. Seems to take them a while to bleed. Lots of bang- flops with Berger. That said, they have their place.
Bergers blow up - that's what they do. If you get lucky, they blow up in such a way the animal goes down fast. If you get unlucky, they blow up in such a way you never see the animal again.
Is your hunting plan to depend on luck?